References of "Cahiers d'Ethologie"
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See detailPoissons migrateurs : objectif Meuse.
Hanon, L.; Philippart, Jean-Claude ULg; Poncin, Pascal ULg

Article for general public (2007)

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See detailUtilisation de la microchimie de l'otolithe pour discriminer les populations de chabots au sein du bassin de la Meuse walonne
Sonny, Damien; Bologne, Guy; Duchesne, Jean-Clair ULg et al

in Cahiers d'Ethologie (2006), 22(2), 39-50

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See detailLa pêche traditionnelle dans les pleines inondables du fleuve Ouémé au Bénin
Laleyé, Philippe; Akélé, David; Philippart, Jean-Claude ULg

in Cahiers d'Ethologie (2005), 22(2), 25-38

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See detailContribution à l’étude de l’avifaune de l’île Santay, Equateur
Marechal, Corinne ULg; Hernandez, José Francisco

in Cahiers d'Ethologie (2005), 22(1), 31-42

The avifauna of the Santay island (Guayaquil, Ecuador) has been studied during a six-months period from September 2000 to February 2001. Nearly half covered by mangrove forest, the island (2 200 ha) has ... [more ▼]

The avifauna of the Santay island (Guayaquil, Ecuador) has been studied during a six-months period from September 2000 to February 2001. Nearly half covered by mangrove forest, the island (2 200 ha) has recently been put on the list of the Ramsar Convention. However, very few data exist about its natural resources. The present results are compared to a previous study carried out in 1994. On the whole 130 birds species have been listed in Santay (48 new for the island) among which 20 Emberizidae, 18 Tyrannidae, 16 diurnal raptors, 20 endemic species to Ecuador, Colombia or Peru, 12 migrating species and 10 species both resident and migrating. Some of these species present abundant populations. Several taxa are considered as threatened. These results confirm the high biological value of the island and involve an important potential for the development of ecotouristic activities. [less ▲]

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See detailCompétition et choix du partenaire sexuel chez les primates
Huynen, Marie-Claude ULg

in Cahiers d'Ethologie (2000), 20(1), 85-112

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See detailLes stratégies de reproduction chez les poissons labridés méditerranéens
Ylieff, Marc ULg

in Cahiers d'Ethologie (2000), 20(1), 113-138

In contrast to tropical environments, Mediterranean fish assemblages have been exposed to greater seasonal fluctuations of climatic factors (water temperature, photoperiod), which have impacted more or ... [more ▼]

In contrast to tropical environments, Mediterranean fish assemblages have been exposed to greater seasonal fluctuations of climatic factors (water temperature, photoperiod), which have impacted more or less significantly on the biology of fish. The labrid fishes (wrasses) are good examples of how climatic changes influence behavioural strategies. The European wrasses differ mainly from the tropical ones by their particular reproductive behavioural patterns. In these wrasses, the variety of the reproductive strategies (hermaphroditism or gonochorism, spawning seasonality in open water or on substrates, degrees of parental care, etc.) make it possible to study the evolution of these strategies. If in tropics, most of wrasses exhibit planktonic spawning, the Mediterranean ones adapted their behaviour, developing modes of reproduction unusual in tropics: short periods of reproduction, spawning eggs on substrates or in elaborated nest, parental cares. This evolution is dictated, in particular, by the pressure of climatic factors, such as water temperature on the presence or the absence of parental care. Of the 21 Mediterranean species, almost all the species studied lay their eggs on substrates or in a nest built by the large territorial male. Only Coris julis, Thalassoma pavo and Xyrichthys novacula (protogynous hermaphroditism fishes) spawn in open water (planktonic spawning) as tropical species do. Moreover, the majority of Symphodus males have complex social structures where nesting territorial, satellite and sneaker males can be recognised. These sneakers adopt reproductive behavioural patterns known as alternative reproductive behaviour. They can either steal the spawn (streaking), or steal the female (sneaking). Finally, the majority of these Symphodus give parental care throughout each nesting cycle (2 to 5 nests are elaborated during the reproductive season in spring), which always comprises three phases: nest building phase (construction with alive algae of a substrate for spawning or a true nest in form of cup), sexual activity phase (the very moment the females come to spawn in the nest) and fanning phase (oxygenation of eggs, by the beat of the pectoral fins, until hatching). The diversity of the biological and behavioural adaptations developed by the numerous tropical and temperate species of labrid fishes allow us to consider the family as an ideal group to investigate various problems in behavioural ecology. [less ▲]

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See detailModelling of the climate influence on the Black Grouse population dynamics in Europe
Loneux, Michèle ULg

in Cahiers d'Ethologie (2000), 20(2-3-4), 191-2162001

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See detailLe comportement social des urodèles
Denoël, Mathieu ULg

in Cahiers d'Ethologie (1999), 19

It could be misleading to consider that the social behaviour of newts and salamanders is simple and can be generalized. Indeed, individuals are faced with external and internal conditions which are ... [more ▼]

It could be misleading to consider that the social behaviour of newts and salamanders is simple and can be generalized. Indeed, individuals are faced with external and internal conditions which are extremely variable. In response to these factors, they may respond in a particular way. The behavioural variations, called alternative tactics, allow individuals to improve their fitness, i.e. to ensure the survival of their genes. They can be exhibited in reaction to a large range of factors such as the mere presence or density of competitors, the operational sex-ratio, the behaviour and kinship of the other individuals, the abiotic characteristics of the environment, the experience of the individuals involved. These alternative tactics are favoured in urodeles. Indeed, although the main process of fertilization is internal, they breed by means of a spermatophore deposited in the external environment. Each species of newts and salamanders exhibits specific behavioural patterns as they developed and evolved in particular environments which have exerted selective pressures on the individuals and in this way on the species. As a consequence, the understanding of patterns of behaviour requires that we know the environment in which they appeared. The main occurrence of parental care and territoriality in terrestrial environments may be explained by the features of these habitats in which eggs could not survive without protection, and in which adults may defend areas of particular interest and communicate by means of pheromones. All of these characteristics show that we have to study the behaviour of individuals of different species under several conditions. Without such an analysis, it would be difficult to understand biodiversity. [less ▲]

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See detailZoos, éducation et malentendus: Essai d'anthropologie des émotion du visiteur de zoo
Servais, Véronique ULg

in Cahiers d'Ethologie (1999), 19(1), 1-16

In the current debate about the zoo's educational role it s usually assumed that the emotional aspect of the zoo experience impairs the scienfic knowledge that people can gain from their visit. First we ... [more ▼]

In the current debate about the zoo's educational role it s usually assumed that the emotional aspect of the zoo experience impairs the scienfic knowledge that people can gain from their visit. First we briefly describe four human-animal interactionnal patterns that can be observed in a zoo, and we recognise that indeed, in that context, the emotion experienced by the public impairs its knowledge of the animals. then we persent the Hediger's distinctin between an object and a subject animal and we hypothesise that the visitor's emotions impari animal knowledge only when the exhibited animals are object-animals. Those are incomplete animals : they are not complete beings in relation to their evolutionary environment. It is our view that when the exhibited animals are more complete organisms, the emotions can be a tool for a better knowledge of the animals. [less ▲]

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See detailDynamique de défense du nid chez Symphodus ocellatus (Forsskål, 1775), poisson labridé méditerranéen. II. Comportements agressifs du mâle territorial nidificateur envers des mollusques gastéropodes
Ylieff, Marc ULg; Michel, Christian ULg; Voss, Jacques

in Cahiers d'Ethologie (1998), 18(1), 39-52

This field research examines aggressive behaviour towards gasteropod molluscs in nesting territorial male of Symphodus ocellatus. This behaviour is useful for brood and nest defense. Four questions ... [more ▼]

This field research examines aggressive behaviour towards gasteropod molluscs in nesting territorial male of Symphodus ocellatus. This behaviour is useful for brood and nest defense. Four questions involving Symphodus ocellatus towards gasteropod molluscs were investigated. Questions of interest were: (1) selective cleaning of the nest according to possible predation danger of molluscs on the eggs, (2) visual recognition of natural mollusc from artificially coloured lure, (3) colours discriminating abilities by the visual system and, more generally (4) the importance of territorial male investment in nest defense; this role could ensure a successful reproduction of the species. Our observations and experimentations (coloured dummies) allow us to conclude that in Symphodus ocellatus, nesting territorial males clean every time their nest, any gasteropod mollusc species whatever; that they have sufficient knowledge of their usual biological environment to be able to discriminate a gasteropod mollusc from a dummy; that the organ of perception used for social recognition is the visual channel constituted by a neural system competent to perceive colours finely , a special quality which support the theory about the use of one preferential colour (red for S.ocellatus) for visual communication; that fry protection insured by territorial male, a task guided by his visual system, is necessary considering dangers from some gasteropod molluscs living in his habitat. [less ▲]

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See detailEvolution des effectifs des Tétras lyres (Tetrao tetrix) dans les Hautes-Fagnes de Belgique
Ruwet, J. C.; Charlet, O.; Groulard, J. M. et al

in Cahiers d'Ethologie (1998), 18(1),

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See detailEstimation de la population de buffles de forêt, Syncerus caffer nanus, dans le Parc National d’Odzala, République du Congo
Chamberlan, Christelle; Marechal, Corinne ULg; MAUROIS, Céline ULg

in Cahiers d'Ethologie (1998), 18(2), 295-298

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See detailLes aires protégées dans la tourmente. Evolution de la situation de 1990 à 1996
Bouché, Philippe ULg

in Cahiers d'Ethologie (1998), 18(2), 161-174

The Akagera National Park (ANP) and the Volcano National Park (VNP) are the main protected areas in Rwanda. Following civil war that bloodstained the country since 1990, the destiny of these two parks ... [more ▼]

The Akagera National Park (ANP) and the Volcano National Park (VNP) are the main protected areas in Rwanda. Following civil war that bloodstained the country since 1990, the destiny of these two parks diverged. The VNP, dedicated to the conservation of one of the last population of mountain gorillas and of their habitat, recovered somehow the same situation as before the war despite some gorillas were lost. The ANP, on the other hand, has been invaded by large herds of domestic cattle, which resulted in serious injuries at its integrity. It seems that two-thirds of the park are on the way to be sacrificed and will be devoted to human and cattle settlement. The fate of the remaining third is still undecided. About 63 years after the park was created, the golden era of this protected area of international reputation seems close to an end... But it is the conservationists' duty to carry on. [less ▲]

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See detailDynamique de défense du nid chez Symphodus ocellatus (Forsskål, 1775), poisson labridé méditerranéen. I. Comportements agonistiques entre le mâle territorial nidificateur et cinq autres espèces de labridés
Ylieff, Marc ULg; Michel, Christian ULg; Voss, Jacques

in Cahiers d'Ethologie (1997), 17(1), 49-74

This research in the field consists of a study of interspecific agonistic behaviour of territorial male in Symphodus ocellatus. This behaviour is useful for brood and nest defense. Four questions ... [more ▼]

This research in the field consists of a study of interspecific agonistic behaviour of territorial male in Symphodus ocellatus. This behaviour is useful for brood and nest defense. Four questions involving Symphodus ocellatus towards S. tinca, S. mediterraneus, S. roissali, Thalassoma pavo et Coris julis were investigated. The questions of interest were: (1) aggressors or intruders motivations (predation of the brood (a) and/or territorial conflicts (b)), (2) the recognition of this or that species (recognition studied with selective attacks by territorial male), (3) the organ(s) of perception used for this recognition and (4) the importance of territorial male investment in nest defense; this role could ensure a successful reproduction of the species. Our observations and experimentations (tested labrid fishes presented to T. males) allow us to affirm that in S. ocellatus, nesting territorial males recognize the various tested labrid fishes; that the organ of perception used for social recognition is the visual channel; that spawn protection insured by territorial male, a task guided by his visual system, is necessary towards menace of his congeners, but also the other fishes living in his habitat. Nevertheless, if it’s becoming clear that the Mediterranean labrid fishes have the ability to recognize and preferentially interact with particular individuals, the answer of the question 1, concerning aggressors motivations, is not yet clearly known. [less ▲]

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See detailInfluence du climat sur l'évolution de la population de tétras lyres Tetrao tetrix dans les Hautes-Fagnes de Belgique de 1967 à 1996
Loneux, Michèle ULg; Lindsey, James ULg; Ruwet, Jean-Claude

in Cahiers d'Ethologie (1997), 17(2-3-4), 345-386

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See detailEvolution des populations du tétras lyre Tetrao tetrix L. en Europe: un essai de synthèse
Loneux, Michèle ULg; Ruwet, Jean-Claude

in Cahiers d'Ethologie (1997), 17((2-3-4)), 287-343

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See detailQuelques arthropodes de nos maisons
Loneux, Michèle ULg

in Cahiers d'Ethologie (1997), 17(1), 75-124

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See detailPhénologie et domaine vital de la salamandre terrestre Salamandra salamandra terrestris (Amphibia, Caudata) dans un bois du Pays de Herve (Belgique)
Denoël, Mathieu ULg

in Cahiers d'Ethologie (1996), 16

The aim of this study was to approach some aspects of the life-history of the fire salamander Salamandra s. terrestris in a small wood of the Vesdre Valley (Liege Province, Belgium). In 1996, 189 ... [more ▼]

The aim of this study was to approach some aspects of the life-history of the fire salamander Salamandra s. terrestris in a small wood of the Vesdre Valley (Liege Province, Belgium). In 1996, 189 salamanders were marked and 68 recaptured. Their cartographic position and the meteorological conditions were noted. Salamanders were active from March to October, mated from May to August and females gave birth to larvae in March-April. Only a small part of the population was active at the same moment. Salamanders were generally faithful to a home range, in spite of some erratic individuals, and are apparently non-territorial. They moved principally along a path. The population is important but strongly threatened by the perturbation of its environment: stream drying, clearing and forest fire. [less ▲]

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